About On Call

InterCall, a subsidiary of West Corporation, is the largest service provider in the world specializing in conference communications. Founded in 1991, InterCall helps people and companies be more productive by providing advanced audio, event, Web and video conferencing solutions that are easy-to-use and save them time and money. Along with a team of – more... 

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Headquarters
Chicago Illinois, United States
Revenue
$75 Million
Employees
1,001 to 5,000
Industry
Links
On Call website